Bulb.



M. Y. LUCAS. BULB.

APPLICATION FILED N .AY3. \9H.V

1,27L184. men'aaulyz, 1918.

JNVENTOR me rwnms persas cu, www-uma.. wnsumawrl, n. r;

provements to a syringe bulb.

l represents a bulb which may be made MARSHALL Y. LUCAS, oro'rsnzrnnnoi BULB.

Application led May 3, 1917.

To aZZ whom z'zf may concern:

Be it known that I, MARSHALL Y. LUCAS, a citizen of the UnitedStates, and a resident of Boise, in the county of Ada and State of Idaho, have invented cert-ain new and useful Improvements in Bulbs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in bulbs, such as those which are made of rubber or other pliable material and adaptable for use with syringes, obtunders and similar devices.

It is well known that a light rubber bulb such as is in common and frequent use, tends constantly to tip over and roll around and that it is diiiicult readily to grasp owing to its being so easily moved.` A source,l of great annoyance is thus occasioned to those who are constantly using a bulb, as in the case of a dentist, or a watch repairer, and it is an object of my invention to so improve a bulb as to o'bviate the annoyance and inconvenience to which I have above alluded. A further object is to so construct a. plilable bulb as to insure its stability when placed upon a table or other support, and at the same time not interfere with the accurate and efficient operation of the bulb when in use.

With these and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings: Figure lis a sectional view illustrating an embodiment of my invention, and Fig. 2 is a similar view showing the application of my imof rubber or other pliable material such as used in the manufacture of bulbs for syringes and kindred devices. The bulb is pro-` vided at one end with a nipple 2 which receives a tube 3 pi-ovidedwith a suitable nozzle 4, through which air or water ma-y be discharged from the bulb.

In the form of the invention shown in F ig.V 1, the bulb is provided interiorly near speciacation tf Letters raient.

Serial No. 166,112.

Patented Juiy 2, 191e.y

its butt end, with a partition 5 of pliable material, thus forming a chamber 6 at the butt end of the bulb. An inlet opening 7 is provided in the wall of this chamber to facilitate the insertion Vof a heavy, readily movable material which will not interfere with the manipulation of the bulb when in use. The material which I prefer to employ in the chamber 6 is mercury, but other readily movable heavy material may be used,- such for example as small metal particles. After the weighty material shall have been inserted into the chamber 6, the inlet opening 7, may be sealed in any suitable manner.

With such construction as above described, the bulb and its attached nozzle tube willbe caused to maintain a'fiXed upright position when placed upon a table or other support.

By providing the bulb with a weight in the form of a mass, the parts of which are readily movable with relation to each other,

such will not interfere with the eflicient opout departing from the spirit thereof 'or limiting its scope and hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. A pliable bulb containing weighting material which is readily movable with its movement conlined to a region of the bulb, all of which lies in one direction from the center of the bulb.

2. `A pliable bulb provided with Va separate chamber containing readily movable weighting material.

3. A pliable bulb provided with a sepa-l rate chamber, and mercury contained in said chamber.

4. A pliable bulb provided therein with a. pliable partition forming a separate chainber, and readily movable weighting material contained within said chamber.

v5. A pliable bulb provided with an auXil- In testimony whereof, I have signed this iary chamber containing a heavy easily movspecification in the presence of two -sub- 1D able substance. scribing Witnesses.

6. A pliable bulb provided With an auXil- 5 iary chamber having a fillingV opening, a

heavy easily movable substance inserted into Witnesses: said chamber and means for sealing said ll- J. L'. NIDAY, ing opening. n M. E. MALLOY.

MARSHALL Y. LUCAS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

j4k 1 f K .Washington, D. G. d 

